2 years ago

A grocer wants to mix a type of spice which costs £22 per kilogram with another type

Mathematics

1 answer:

AfilCa [17]2 years ago

8 0

Answer:

Step-by-step explanation:

let a = 22 / kg, and b = 12 / kg

a + b = 20 kg

22a + 12b = 15 * 20

12a + 12b = 240

10a = 60

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